Where does “adjö” come from?

adjö (Swedish) comes from French adieu, from Old French a Dieu vos comant.

adjö (Swedish): goodbye

Definitions

Step	Language	Word	Meaning
1	French	adieu	farewell, adieu; goodbye, see you soon; hello
2	Old French	a Dieu vos comant	—

adjö — Etymology, Origin & Word History | Etymology Explorer